Ic Pin Function Description - Sony TA-FE320R Service Manual

3-8. IC PIN FUNCTION DESCRIPTION

• CONTROL BOARD IC801 TMP47C103N-JP47 (FUNCTION SWITCH CONTROL, LED DRIVER)
Pin No. Pin Name
1 XOUT
2 XIN
3 RESET
4 PMD
5 VOL+
6 VOL–
7 SW0
8 SW1
9 SW2
10 EON
11 PHONO
12 TUNER
13 CD
14 GND
15 AUX
16 DAT
17 TAPE
18 MON
19 PRY
20 PKY
21 MON
22 SIRCS
23 MUTE
24 SCE
25 SDT
26 SCK
27 STOP
28 +3V
I/O
O Main system clock output terminal (4 MHz)
I Main system clock input terminal (4 MHz)
System reset signal input terminal "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
I Mode select input terminal Fixed at "H" in this set
O Motor drive signal output to the volume motor drive (IC802) (volume up direction)
O Motor drive signal output to the volume motor drive (IC802) (volume down direction)
I
I Rotary switch input of the INPUT SELECTOR (S801)
I
I Detection signal input of the enhanced other networks (EON) Used for the TA-FE520R only
O LED drive signal output of the PHONO LED (D808) "L": LED on
O LED drive signal output of the TUNER LED (D809) "L": LED on
O LED drive signal output of the CD LED (D810) "L": LED on
— Ground terminal
O LED drive signal output of the AUX LED (D811) "L": LED on
O LED drive signal output of the TAPE2/MD LED (D812) "L": LED on
O LED drive signal output of the TAPE1/DAT LED (D813) "L": LED on
Tape monitor on/off control signal output terminal "L": tape monitor on
O
Used for the TA-FE520R only
O AC on/off relay drive signal output terminal "L": power on, "H": standby mode
I Power switch (S1; I/u) input terminal "H": power on
I Tape monitor switch (S802) input terminal When pressing the key: "H"
I Sircs signal input from the remote control receiver (IC803)
O Audio line muting on/off control signal output terminal "H": muting on
O Chip enable signal output to the function switch (IC101)
O Serial data output to the function switch (IC101)
O Serial data transfer clock signal output to the function switch (IC101)
I Detection signal input of the AC input
— Power supply terminal (+3V)
Function
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